Design and characterization of novel flexible phase change composite materials as protective liners for the cartridge case

of binders has a positive effect on FPCMs thermal stability and FPCM sample containing cBSL exhibit the most remarkable thermal stability. The tensile experiments demonstrate that these FPCMs display the desirable mechanical performance and exhibit brittle fraction model. The tensile strength and elongation at break of FPCMs can be enhanced by the introducing of these binders. Pretreating pure fabric with gelatin is proved to be the most effective way in improving the mechanical performance of FPCMs. Herein, FPCM containing WPU has the highest ultimate tensile strength that can be up to 293.53 MPa. The novel flexible phase change composite materials could be a promising candidate to be used as protective liners to reduce the gun barrel erosion induced by the combustion of high energy propellants.